Display shelf



FIGS. 1 and 2 are perspective views of a display shelf showing our new design;

FIG. 3 is a left side view thereof, the opposing right side view being a mirror image;

FIG. 4 is a front view thereof;

FIG. 5 is a back view thereof; and,

FIG. 6 is a top view thereof.

The broken lines shown in the drawings are included for purposes of illustrating environment or portions of the display shelf and form no part of the claimed design. 

CLAIM The ornamental design for a display shelf, as shown and described. 